On Holy War: Beware Lest Ye Shed the Blood of Anyone

The roots of the Baha'i Faith are in Islam. The Baha'i Faith had its beginnings in what is present-day Iran. It grew out of Islam just as Christianity grew out of Judaism. The Founder of the Baha'i Faith, Baha'u'llah, was born a Muslim just as Christ was born a Jew. The following teaching of Baha'u'llah has relevance to all of humanity and not just Muslims:

Beware lest ye shed the blood of anyone. Unsheathe the sword of your tongue from the scabbard of utterance, for therewith ye can conquer the citadels of men’s hearts. We have abolished the law to wage holy war against each other. God’s mercy, hath, verily, encompassed all created things, if ye do but understand. Aid ye your Lord, the God of Mercy, with the sword of understanding. Keener indeed is it, and more finely tempered, than the sword of utterance, were ye but to reflect upon the words of your Lord.

Baha'u'llah, The Summons of the Lord of Hosts, p. 23.